Sintered Neodymium Magnets
Sintered neodymium magnetis the strongest magnetic material commercially available today. It is largely made of alloy of neodymium, iron and boron, and the chemical formula is Nd2Fe14B. Sintered NdFeB neodymium magnet exhibits high magnetic energy product in small size with high coercive forces. Examples of applications include permanent magnet motors, loudspeakers, magnetic separators, wind power generators, computer hard drive, and MRI devices.
For more technical information of our sintered neodymium magnet, please refer to the sections of Technological Advantages, Demagnetization Curve, Grades, Magnetic Properties, Physical Properties, Magnetic Parameters, Surface Treatment, Magnetization Orientations.
Technological Advantages
High Coercive Force
Highest Intrinsic coercive force Hcj≥35kOe
High Consistency
CPK of Remanence (Br) and Intrinsic coercive force (Hcj)>1.67
Low Reversible Temperature Coefficient
αBr=-0.08%/℃, βHcj=-0.4%/℃
Low Weight Loss
130℃, humidity 100%, vapor pressure 2.7bar, 20days, average weight loss<2mg/cm2
Demagnetization Curves of Sintered Neodymium Magnet
N52 Demagnetization Curves at Different Temperatures N50M Demagnetization Curves at Different Temperatures
N48H Demagnetization Curves at Different Temperatures N45SH Demagnetization Curves at Different Temperatures
N40UH Demagnetization Curves at Different Temperatures N38EH Demagnetization Curves at Different Temperatures
Grades
The Grade of a magnet generally indicates how "strong" a magnet material is, which is measured by the Maximum Energy Product. The energy product is commonly specified in units of Gauss Oersted. The higher the grade the "stronger" the magnet. The grade also tells the temperature rating of a magnet material. Neodymium magnets have different heat tolerances which determine their maximum working temperature. As the heat tolerance increases the maximum available flux density decreases.
Magnetic Properties of Sintered Neodymium Magnet
Notes:
Surface Treatment
As Neodymium magnet is prone to corrosion, it is usually preferable for the magnet to be coated for protection. Among a variety of options for coatings, nickel and nickel-copper-nickel are the most commonly used, making the magnet more corrosion resistant and durable.
Magnetization Orientations
Magnets can be delivered magnetized and un-magnetized. Some production methods require the magnets being incorporated into assemblies in a un-magnetized state and magnetized later once the assembly is completed. There are various magnetic orientations available for different shapes of magnets.
Send product request
Other supplier products
 |
3/4 inch x 1/8 inch Circle Magents Industrial Magnets N42 Custom Round Magnet | This powerful neodymium disc magnet measures 3/4" in diameter, 1/8" in thickness, with the pull force of 9.76 lb vertically. It is made from an all... |
 |
Sintered Neodymium Magnets | Sintered neodymium magnet is the strongest magnetic material commercially available today. It is largely made of alloy of neodymium, iron and boron... |
 |
Countersunk Neodymium Magnets | Sepecifications of countersunk rare earth magnets Material SinteredNeodymiumIronBoron Dimensions Round/Rectangular Customized Cou... |
 |
Industrial Magnet 1 inch x1/4 inch x1/8 inch Magnetic Plate Thin Magnet Bar | This powerful neodymium block magnet measures 1" in length, 1/4" in width, and 1/2" in thickness, with the pull force of 18.71 lb vertically. It is... |
 |
Cube Magnet 3/4 inch x1/4 inch x1/4 inch Conveyor Belt Magnet Block | This powerful neodymium block magnet measures 3/4" in length, 1/4" in width, and 1/4" in thickness, with the pull force of 10.51 lb vertically. It ... |
Same products
 |
Magnet Threaded | Seller: NINGBO SOUWEST MAGNETECH DEVELOPMENT CO.,LTD | Pot magnet threaded is a pot magnet with an internal thread or external screw, still using powerf... |
 |
Swivel Magnetic Hook | Seller: NINGBO SOUWEST MAGNETECH DEVELOPMENT CO.,LTD | Swivel magnetic hookrefers to a type of hook magnets that has a swivel hook, the core of which co... |
 |
Strong Fishing Magnet | Seller: NINGBO SOUWEST MAGNETECH DEVELOPMENT CO.,LTD | Super Strong Fishing Magnetalso called big/giant fishing magnet with NdFeB is designed for magnet... |
 |
Samarium Cobalt Magnets | Seller: NINGBO SOUWEST MAGNETECH DEVELOPMENT CO.,LTD | Samarium cobalt block magnets(also known as smco magnet): one of the two types of rare earth magn... |
 |
Samarium Cobalt Magnets | Seller: Hangzhou Tengye Magnetic Materials Co., Ltd. | Samarium cobalt magnets chinaare a type of rare earth magnet, along with neodymium magnets. They ... |
